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  5. ›CHAIN OF LAKES TREATMENT PLANT HEXAVALENT CHROMIUM REMOVAL…

Zone 7 Water Agency·California

CHAIN OF LAKES TREATMENT PLANT HEXAVALENT CHROMIUM REMOVAL STUDY

Closes 11/21/2025$200k – $500kRequest for Proposal
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Description

Zone 7 Water Agency is seeking a consultant to conduct a bench-scale study to evaluate the effectiveness of hexavalent chromium removal and identify potential treatment modifications and future resin options for the Chain of Lakes Treatment Plant. The scope of work includes a preliminary scope of work, project milestones, and deliverables such as a draft and final testing plan and a draft and final study report. The consultant should have experience in the removal of hexavalent chromium and PFAS, and should be familiar with local conditions and regulations. The project is expected to begin in January 2026 and conclude in December 2026. Key responsibilities include: • Conducting a bench-scale study to evaluate the effectiveness of hexavalent chromium removal • Identifying potential treatment modifications and future resin options • Developing a draft and final testing plan and a draft and final study report • Meeting project milestones and delivering the final report by May 15, 2026

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Angela O'Brien

[email protected]

(925) 454-5748

Key dates

Opened
11/3/2025
Questions due
11/10/2025
Closes
11/21/2025
Duration
12 months

Last updated

Details

Type
Request for Proposal
Industry
Water Management and Sanitation
NAICS
221310
Solicitation №
RFP-2025-119

Budget estimate

$200,000 – $500,000

The budget for this project is not explicitly stated, but based on the scope of work and the fact that it is a professional services contract, it is likely to be in the range of $200,000 to $500,000. This estimate is based on the assumption that the project will require a team of consultants with expertise in water treatment and environmental engineering, and that the project will involve a combination of fieldwork, laboratory testing, and report writing. Factors that may influence the likely payment range include the complexity of the project, the level of expertise required, and the duration of the project.

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